〜て以来: meaning and usage

How to form it

• verb (te-form)+以来
• noun+以来

How it is used

Since a past event, a state has continued up to now. The second half must be an ongoing situation, not a one-off event. It is more formal than 「〜てから」 and is not normally used for the very recent past.

Examples

1. そのチームは最初の優勝以来、 負けたことがない。

   Since their first victory, this team has not lost a game.

2. 日本に来て以来、毎日日本語で日記を書いている。

   Ever since I came to Japan, I've kept a diary in Japanese every day.

3. 高校を卒業して以来、彼とは一度も会っていない。

   I haven't seen him once since I finished high school.